HttpClient httpclient = new DefaultHttpClient();
             HttpPost httppost = new HttpPost("http://www.yoururl.htm");

             try {
                  HttpClient client = new DefaultHttpClient();  
                  String postURL = "http://www.yoururl.htm";
                  HttpPost post = new HttpPost(postURL); 
                     List<NameValuePair> params = new ArrayList<NameValuePair>();
                      params.add(new BasicNameValuePair("usr_name", "Dombo"));
                      params.add(new BasicNameValuePair("usr_password", "DomboX"));
                      UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params,HTTP.UTF_8);
                      post.setEntity(ent);
                      HttpResponse responsePOST = client.execute(post);  
                      HttpEntity resEntity = responsePOST.getEntity();  
                      if (resEntity != null) {    
                          Log.i("RESPONSE",EntityUtils.toString(resEntity));
                      }
              } catch (Exception e) {
                  e.printStackTrace();
                         
              }